Re-fillling Canon Ink Cartridges

Does anyone have any knowledge of re-filling Canon PG645/646 ink cartridges.
I am looking for information on where to drill the holes on the PG646 colour tank.

Thanks in advance.

geek_relic, May 7, 12:13 am

try the guys on here i get new inks or professionally refilled inks for under 10$ for all colours on my epson

geek_intrade, May 7, 8:32 pm

Google "re-filling Canon PG645/646 ink cartridges" plenty of data there.

geek_cjdnzl, Dec 8, 2:16 pm